GB2467777B - MEMS device and process - Google Patents

MEMS device and process

Info

Publication number
GB2467777B
GB2467777B GB0902480A GB0902480A GB2467777B GB 2467777 B GB2467777 B GB 2467777B GB 0902480 A GB0902480 A GB 0902480A GB 0902480 A GB0902480 A GB 0902480A GB 2467777 B GB2467777 B GB 2467777B
Authority
GB
United Kingdom
Prior art keywords
mems device
mems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB0902480A
Other languages
English (en)
Other versions
GB2467777A (en
GB0902480D0 (en
Inventor
Colin Robert Jenkins
Tsjerk Hoekstra
Richard Laming
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cirrus Logic International UK Ltd
Original Assignee
Wolfson Microelectronics PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolfson Microelectronics PLC filed Critical Wolfson Microelectronics PLC
Priority to GB0902480A priority Critical patent/GB2467777B/en
Priority to GB1002520A priority patent/GB2467848B/en
Publication of GB0902480D0 publication Critical patent/GB0902480D0/en
Priority to TW099104592A priority patent/TWI457270B/zh
Priority to US13/201,093 priority patent/US20110303994A1/en
Priority to KR1020117021241A priority patent/KR101733815B1/ko
Priority to EP10704182.4A priority patent/EP2396274B8/fr
Priority to CN2010800120554A priority patent/CN102356042A/zh
Priority to PCT/GB2010/050241 priority patent/WO2010092406A2/fr
Publication of GB2467777A publication Critical patent/GB2467777A/en
Application granted granted Critical
Publication of GB2467777B publication Critical patent/GB2467777B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
    • B81B3/0002—Arrangements for avoiding sticking of the flexible or moving parts
    • B81B3/0008—Structures for avoiding electrostatic attraction, e.g. avoiding charge accumulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0292—Electrostatic transducers, e.g. electret-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
    • B81B3/0018—Structures acting upon the moving or flexible element for transforming energy into mechanical movement or vice versa, i.e. actuators, sensors, generators
    • B81B3/0021—Transducers for transforming electrical into mechanical energy or vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
    • B81B3/0064—Constitution or structural means for improving or controlling the physical properties of a device
    • B81B3/0086—Electrical characteristics, e.g. reducing driving voltage, improving resistance to peak voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
    • B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
    • B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
    • B81C1/00134—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems comprising flexible or deformable structures
    • B81C1/00158—Diaphragms, membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/84—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by variation of applied mechanical force, e.g. of pressure
    • H01L41/113—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/04—Microphones
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B2201/00—Specific applications of microelectromechanical systems
    • B81B2201/02—Sensors
    • B81B2201/0257—Microphones or microspeakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B2203/00—Basic microelectromechanical structures
    • B81B2203/04—Electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/005—Electrostatic transducers using semiconductor materials
GB0902480A 2009-02-13 2009-02-13 MEMS device and process Active GB2467777B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB0902480A GB2467777B (en) 2009-02-13 2009-02-13 MEMS device and process
GB1002520A GB2467848B (en) 2009-02-13 2009-02-13 MEMS device and process
KR1020117021241A KR101733815B1 (ko) 2009-02-13 2010-02-12 누설 경로를 갖는 ｍｅｍｓ 장치
US13/201,093 US20110303994A1 (en) 2009-02-13 2010-02-12 Mems device and process
TW099104592A TWI457270B (zh) 2009-02-13 2010-02-12 微機電系統裝置及製程
EP10704182.4A EP2396274B8 (fr) 2009-02-13 2010-02-12 Dispositif mems avec un chemin de fuite
CN2010800120554A CN102356042A (zh) 2009-02-13 2010-02-12 具有漏电路径的微机电系统设备
PCT/GB2010/050241 WO2010092406A2 (fr) 2009-02-13 2010-02-12 Dispositif et procédé mems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0902480A GB2467777B (en) 2009-02-13 2009-02-13 MEMS device and process

Publications (3)

Publication Number Publication Date
GB0902480D0 GB0902480D0 (en) 2009-04-01
GB2467777A GB2467777A (en) 2010-08-18
GB2467777B true GB2467777B (en) 2011-01-12

Family

ID=40548202

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0902480A Active GB2467777B (en) 2009-02-13 2009-02-13 MEMS device and process
GB1002520A Active GB2467848B (en) 2009-02-13 2009-02-13 MEMS device and process

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1002520A Active GB2467848B (en) 2009-02-13 2009-02-13 MEMS device and process

Country Status (7)

Country Link
US (1) US20110303994A1 (fr)
EP (1) EP2396274B8 (fr)
KR (1) KR101733815B1 (fr)
CN (1) CN102356042A (fr)
GB (2) GB2467777B (fr)
TW (1) TWI457270B (fr)
WO (1) WO2010092406A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9102519B2 (en) 2013-03-14 2015-08-11 Infineon Technologies Ag Semiconductor devices and methods of forming thereof
US9216897B2 (en) * 2013-06-05 2015-12-22 Invensense, Inc. Capacitive sensing structure with embedded acoustic channels
US20160037261A1 (en) * 2014-07-29 2016-02-04 Knowles Electronics, Llc Composite Back Plate And Method Of Manufacturing The Same
US9400224B2 (en) 2014-09-12 2016-07-26 Industrial Technology Research Institute Pressure sensor and manufacturing method of the same
GB2555510B (en) * 2016-06-30 2020-03-11 Cirrus Logic Int Semiconductor Ltd MEMS device and process
GB2553154B (en) * 2016-08-22 2019-11-20 Cirrus Logic Int Semiconductor Ltd MEMS device
US9813831B1 (en) 2016-11-29 2017-11-07 Cirrus Logic, Inc. Microelectromechanical systems microphone with electrostatic force feedback to measure sound pressure
US9900707B1 (en) * 2016-11-29 2018-02-20 Cirrus Logic, Inc. Biasing of electromechanical systems microphone with alternating-current voltage waveform
GB2561921A (en) * 2017-04-28 2018-10-31 Cirrus Logic Int Semiconductor Ltd MEMS Device and process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469701A2 (fr) * 2000-08-11 2004-10-20 Knowles Electronics, LLC Microstructures en relief
GB2444123A (en) * 2006-03-20 2008-05-28 Wolfson Microelectronics Plc Stress free MEMS transducer
WO2009016606A2 (fr) * 2007-07-31 2009-02-05 Koninklijke Philips Electronics, N.V. Transducteurs à ultrasons micro-usinés capacitifs ayant un diélectrique à constante diélectrique élevée

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US5265470A (en) * 1987-11-09 1993-11-30 California Institute Of Technology Tunnel effect measuring systems and particle detectors
US5103682A (en) * 1990-11-05 1992-04-14 The United States Of America As Represented By The Secretary Of Commerce Ultra-sensitive force detector employing servo-stabilized tunneling junction
JP3148946B2 (ja) * 1991-05-30 2001-03-26 キヤノン株式会社 探針駆動機構並びに該機構を用いたトンネル電流検出装置、情報処理装置、圧電式アクチュエータ
US5619061A (en) * 1993-07-27 1997-04-08 Texas Instruments Incorporated Micromechanical microwave switching
US5738731A (en) * 1993-11-19 1998-04-14 Mega Chips Corporation Photovoltaic device
US5696423A (en) * 1995-06-29 1997-12-09 Motorola, Inc. Temperature compenated resonator and method
JP3235572B2 (ja) * 1998-09-18 2001-12-04 日本電気株式会社 磁気抵抗効果素子，磁気抵抗効果センサ及びそれらを利用したシステム
US6391675B1 (en) * 1998-11-25 2002-05-21 Raytheon Company Method and apparatus for switching high frequency signals
US6522762B1 (en) * 1999-09-07 2003-02-18 Microtronic A/S Silicon-based sensor system
US6535460B2 (en) * 2000-08-11 2003-03-18 Knowles Electronics, Llc Miniature broadband acoustic transducer
US6987859B2 (en) * 2001-07-20 2006-01-17 Knowles Electronics, Llc. Raised microstructure of silicon based device
US6847090B2 (en) * 2001-01-24 2005-01-25 Knowles Electronics, Llc Silicon capacitive microphone
TW490851B (en) * 2001-04-17 2002-06-11 Asia Pacific Microsystems Inc Micro high frequency passive device, the module thereof and the manufacturing method thereof
US7298856B2 (en) * 2001-09-05 2007-11-20 Nippon Hoso Kyokai Chip microphone and method of making same
JP4045090B2 (ja) * 2001-11-06 2008-02-13 オムロン株式会社 静電アクチュエータの調整方法
US6829814B1 (en) * 2002-08-29 2004-12-14 Delphi Technologies, Inc. Process of making an all-silicon microphone
TWI226377B (en) * 2002-11-08 2005-01-11 Ind Tech Res Inst Dielectric material compositions
TW577855B (en) * 2003-05-21 2004-03-01 Univ Nat Cheng Kung Chip-type micro-fluid particle 3-D focusing and detection device
US7538401B2 (en) * 2005-05-03 2009-05-26 Rosemount Aerospace Inc. Transducer for use in harsh environments
US20060280319A1 (en) * 2005-06-08 2006-12-14 General Mems Corporation Micromachined Capacitive Microphone
WO2007010421A2 (fr) * 2005-07-18 2007-01-25 Koninklijke Philips Electronics N. V. Microphone et boitier de microsysteme electromecanique
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US7547480B2 (en) * 2005-10-28 2009-06-16 Everspin Technologies, Inc. Magnetic tunnel junction pressure sensors and methods
WO2007054858A2 (fr) * 2005-11-08 2007-05-18 Nxp B.V. Agencement integre de condensateurs pour des valeurs ultra elevees de capacite
TWI315643B (en) * 2006-01-06 2009-10-01 Ind Tech Res Inst Micro acoustic transducer and manufacturing method thereof
TW200746868A (en) * 2006-02-24 2007-12-16 Yamaha Corp Condenser microphone
WO2008048563A2 (fr) * 2006-10-17 2008-04-24 Marvell World Trade Ltd. Émulateur pour oscillateur à quartz
US8338897B2 (en) * 2008-04-03 2012-12-25 Snu R&Db Foundation Conductive nanomembrane, and MEMS sensor of using the same
US20090285419A1 (en) * 2008-05-13 2009-11-19 United Microelectronics Corp. Microelectromechanical system microphone
US8218286B2 (en) * 2008-11-12 2012-07-10 Taiwan Semiconductor Manufacturing Company, Ltd. MEMS microphone with single polysilicon film
US20100200892A1 (en) * 2009-02-09 2010-08-12 Yen-Wei Hsu tunnel device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469701A2 (fr) * 2000-08-11 2004-10-20 Knowles Electronics, LLC Microstructures en relief
GB2444123A (en) * 2006-03-20 2008-05-28 Wolfson Microelectronics Plc Stress free MEMS transducer
WO2009016606A2 (fr) * 2007-07-31 2009-02-05 Koninklijke Philips Electronics, N.V. Transducteurs à ultrasons micro-usinés capacitifs ayant un diélectrique à constante diélectrique élevée

Also Published As

Publication number Publication date
GB2467777A (en) 2010-08-18
WO2010092406A3 (fr) 2011-05-26
EP2396274B8 (fr) 2019-10-02
US20110303994A1 (en) 2011-12-15
EP2396274B1 (fr) 2019-08-07
KR101733815B1 (ko) 2017-05-24
TWI457270B (zh) 2014-10-21
CN102356042A (zh) 2012-02-15
WO2010092406A2 (fr) 2010-08-19
GB201002520D0 (en) 2010-03-31
TW201036910A (en) 2010-10-16
GB2467848B (en) 2011-01-12
EP2396274A2 (fr) 2011-12-21
GB2467848A (en) 2010-08-18
GB0902480D0 (en) 2009-04-01
KR20110132562A (ko) 2011-12-08

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Legal Events

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Free format text: REGISTERED BETWEEN 20150820 AND 20150826